Table 3 Examples of verbal interactions during class-wide discussions on identifying salient findings in images

Marker-question:

“Please mark in this pa- and lateral view the pathologic findings.”

Marker-question:

“Please mark in this pa- and lateral view the pathologic findings.”

Observation:

In the learning dashboard the hotspot diagram (Fig. 1) shows that several normal anatomical structures are marked. The supervisor does not however ask why students think these structures are pathologic

Observation:

Student poses question based on lateral view of chest radiograph

Transcript of discussion of frontal view:

T: Most of you have seen that over there something wrong (pointing to area). T: what structure is marked over there (pointing to area)? S: aortic arch. T: aortic arch. And something down below, a rib or something. But most of you have seen that something in this region is wrong. A pleural effusion but we already discussed that.

Transcript of discussion on lateral view:

T: A lot have marked the lung hilus, but a lot of you have also seen that below there was this pleura effusion.

Transcript:

S1: what are those lines? T: you mean these ones that run downwards (pointing to structures)? S: Yes. T: This question I will pose to the group. What are these lines? S: vessels. T: There are a lot of vessels, for instance there and there (pointing to structures). But these lines are much to fine for vessels. Vessels are like that. S: a structure from the heart, the pericard. T: the pericardal bag contains fat and is thereby a homogenous structure on radiologic images. So you can't separately distinguish the pericard. You need air somewhere, an air-tissue contrast to be able to distinguish it in a radiograph. T: fine smaller than 1 mm thick structures that run in this way down, and that way down? S: nerves. T: No, nerves can be found in the mediastinum. S: fissures. T: exactly that are the borders of the pulmonary lobes. The fissures. They are a bit pronounced probably because they contain some fluid.